Results of four years' combat of bovine leukosis in the southern part of Lower Saxony.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D005860:Germany, West; D008218:Lymphocytosis / Q000453:epidemiology* / Q000517:prevention & control; D008228:Lymphoma, Non-Hodgkin / Q000517:prevention & control* / Q000662:veterinary